### [CVE-2019-15621](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-15621)
![](https://img.shields.io/static/v1?label=Product&message=Nextcloud%20Server&color=blue)
![](https://img.shields.io/static/v1?label=Version&message=n%2Fa&color=blue)
![](https://img.shields.io/static/v1?label=Vulnerability&message=Privilege%20Escalation%20(CAPEC-233)&color=brighgreen)

### Description

Improper permissions preservation in Nextcloud Server 16.0.1 causes sharees to be able to reshare with write permissions when sharing the mount point of a share they received, as a public link.

### POC

#### Reference
- https://hackerone.com/reports/619484

#### Github
No PoCs found on GitHub currently.